/**
 * Numerically encodes the strings in the matrix with an encoding dictionary.
 * @param matrixInitial - Original matrix before encoding.
 * @param dictionary - Dictionary against which to do the encoding.
 * @returns - Encoded matrix.
 */
export declare function matrixApplyNumericalEncoding(matrixInitial: Array<Array<string | number>>, dictionary: Record<string, number>): number[][];
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